./Ultimate.py --spec /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/properties/unreach-call.prp --file /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 4a390ef5 Calling Ultimate with: /root/.sdkman/candidates/java/current/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(reach_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 --- Real Ultimate output --- This is Ultimate 0.2.5-dev-4a390ef-m [2024-10-24 05:19:32,202 INFO L188 SettingsManager]: Resetting all preferences to default values... [2024-10-24 05:19:32,285 INFO L114 SettingsManager]: Loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2024-10-24 05:19:32,291 WARN L101 SettingsManager]: Preference file contains the following unknown settings: [2024-10-24 05:19:32,293 WARN L103 SettingsManager]: * de.uni_freiburg.informatik.ultimate.core.Log level for class [2024-10-24 05:19:32,318 INFO L130 SettingsManager]: Preferences different from defaults after loading the file: [2024-10-24 05:19:32,319 INFO L151 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2024-10-24 05:19:32,319 INFO L153 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2024-10-24 05:19:32,320 INFO L151 SettingsManager]: Preferences of Boogie Preprocessor differ from their defaults: [2024-10-24 05:19:32,321 INFO L153 SettingsManager]: * Use memory slicer=true [2024-10-24 05:19:32,322 INFO L151 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2024-10-24 05:19:32,322 INFO L153 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2024-10-24 05:19:32,323 INFO L151 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2024-10-24 05:19:32,323 INFO L153 SettingsManager]: * Create parallel compositions if possible=false [2024-10-24 05:19:32,325 INFO L153 SettingsManager]: * Use SBE=true [2024-10-24 05:19:32,325 INFO L151 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2024-10-24 05:19:32,325 INFO L153 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2024-10-24 05:19:32,326 INFO L153 SettingsManager]: * sizeof long=4 [2024-10-24 05:19:32,326 INFO L153 SettingsManager]: * Overapproximate operations on floating types=true [2024-10-24 05:19:32,326 INFO L153 SettingsManager]: * sizeof POINTER=4 [2024-10-24 05:19:32,326 INFO L153 SettingsManager]: * Check division by zero=IGNORE [2024-10-24 05:19:32,327 INFO L153 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2024-10-24 05:19:32,327 INFO L153 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2024-10-24 05:19:32,328 INFO L153 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2024-10-24 05:19:32,328 INFO L153 SettingsManager]: * Allow undefined functions=false [2024-10-24 05:19:32,328 INFO L153 SettingsManager]: * sizeof long double=12 [2024-10-24 05:19:32,328 INFO L153 SettingsManager]: * Check if freed pointer was valid=false [2024-10-24 05:19:32,329 INFO L153 SettingsManager]: * Use constant arrays=true [2024-10-24 05:19:32,329 INFO L151 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2024-10-24 05:19:32,329 INFO L153 SettingsManager]: * Size of a code block=SequenceOfStatements [2024-10-24 05:19:32,330 INFO L153 SettingsManager]: * Only consider context switches at boundaries of atomic blocks=true [2024-10-24 05:19:32,330 INFO L153 SettingsManager]: * SMT solver=External_DefaultMode [2024-10-24 05:19:32,330 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 05:19:32,330 INFO L151 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2024-10-24 05:19:32,331 INFO L153 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2024-10-24 05:19:32,331 INFO L153 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopHeads [2024-10-24 05:19:32,331 INFO L153 SettingsManager]: * Trace refinement strategy=CAMEL [2024-10-24 05:19:32,331 INFO L153 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2024-10-24 05:19:32,332 INFO L153 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2024-10-24 05:19:32,332 INFO L153 SettingsManager]: * Automaton type used in concurrency analysis=PETRI_NET [2024-10-24 05:19:32,332 INFO L153 SettingsManager]: * Order on configurations for Petri net unfoldings=DBO [2024-10-24 05:19:32,332 INFO L153 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2024-10-24 05:19:32,333 INFO L153 SettingsManager]: * Looper check in Petri net analysis=SEMANTIC WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! call(reach_error())) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> 1210d8db9779caa2b34faedb9da4e6c42e2b8376c95e81a461341238221703f5 [2024-10-24 05:19:32,575 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2024-10-24 05:19:32,600 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2024-10-24 05:19:32,603 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2024-10-24 05:19:32,604 INFO L270 PluginConnector]: Initializing CDTParser... [2024-10-24 05:19:32,604 INFO L274 PluginConnector]: CDTParser initialized [2024-10-24 05:19:32,605 INFO L431 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2024-10-24 05:19:33,984 INFO L533 CDTParser]: Created temporary CDT project at NULL [2024-10-24 05:19:34,210 INFO L384 CDTParser]: Found 1 translation units. [2024-10-24 05:19:34,212 INFO L180 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i [2024-10-24 05:19:34,224 INFO L427 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f33529d/4ff41f9ac66e406f983cad50b1e9c2b3/FLAGe26e88fd6 [2024-10-24 05:19:34,242 INFO L435 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b2f33529d/4ff41f9ac66e406f983cad50b1e9c2b3 [2024-10-24 05:19:34,244 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2024-10-24 05:19:34,246 INFO L133 ToolchainWalker]: Walking toolchain with 6 elements. [2024-10-24 05:19:34,249 INFO L112 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2024-10-24 05:19:34,249 INFO L270 PluginConnector]: Initializing CACSL2BoogieTranslator... [2024-10-24 05:19:34,254 INFO L274 PluginConnector]: CACSL2BoogieTranslator initialized [2024-10-24 05:19:34,255 INFO L184 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,255 INFO L204 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@30d5ac41 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34, skipping insertion in model container [2024-10-24 05:19:34,256 INFO L184 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,286 INFO L175 MainTranslator]: Built tables and reachable declarations [2024-10-24 05:19:34,488 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2024-10-24 05:19:34,592 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 05:19:34,613 INFO L200 MainTranslator]: Completed pre-run [2024-10-24 05:19:34,625 WARN L248 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/hardness-nfm22/hardness_codestructure_normal_file-34.i[913,926] [2024-10-24 05:19:34,659 INFO L210 PostProcessor]: Analyzing one entry point: main [2024-10-24 05:19:34,677 INFO L204 MainTranslator]: Completed translation [2024-10-24 05:19:34,678 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34 WrapperNode [2024-10-24 05:19:34,678 INFO L131 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2024-10-24 05:19:34,680 INFO L112 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2024-10-24 05:19:34,681 INFO L270 PluginConnector]: Initializing Boogie Procedure Inliner... [2024-10-24 05:19:34,681 INFO L274 PluginConnector]: Boogie Procedure Inliner initialized [2024-10-24 05:19:34,687 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,701 INFO L184 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,739 INFO L138 Inliner]: procedures = 26, calls = 40, calls flagged for inlining = 8, calls inlined = 8, statements flattened = 198 [2024-10-24 05:19:34,740 INFO L131 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2024-10-24 05:19:34,741 INFO L112 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2024-10-24 05:19:34,741 INFO L270 PluginConnector]: Initializing Boogie Preprocessor... [2024-10-24 05:19:34,741 INFO L274 PluginConnector]: Boogie Preprocessor initialized [2024-10-24 05:19:34,751 INFO L184 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,752 INFO L184 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,756 INFO L184 PluginConnector]: Executing the observer MemorySlicer from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,777 INFO L175 MemorySlicer]: Split 2 memory accesses to 1 slices as follows [2]. 100 percent of accesses are in the largest equivalence class. The 2 initializations are split as follows [2]. The 0 writes are split as follows [0]. [2024-10-24 05:19:34,777 INFO L184 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,777 INFO L184 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,792 INFO L184 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,800 INFO L184 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,803 INFO L184 PluginConnector]: Executing the observer LTLStepAnnotator from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,808 INFO L184 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,816 INFO L131 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2024-10-24 05:19:34,817 INFO L112 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2024-10-24 05:19:34,817 INFO L270 PluginConnector]: Initializing RCFGBuilder... [2024-10-24 05:19:34,817 INFO L274 PluginConnector]: RCFGBuilder initialized [2024-10-24 05:19:34,818 INFO L184 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (1/1) ... [2024-10-24 05:19:34,823 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 [2024-10-24 05:19:34,833 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2024-10-24 05:19:34,849 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (exit command is (exit), workingDir is null) [2024-10-24 05:19:34,854 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:4000 (1)] Waiting until timeout for monitored process [2024-10-24 05:19:34,895 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2024-10-24 05:19:34,896 INFO L130 BoogieDeclarations]: Found specification of procedure assume_abort_if_not [2024-10-24 05:19:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure assume_abort_if_not [2024-10-24 05:19:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int#0 [2024-10-24 05:19:34,897 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2024-10-24 05:19:34,897 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2024-10-24 05:19:34,978 INFO L238 CfgBuilder]: Building ICFG [2024-10-24 05:19:34,982 INFO L264 CfgBuilder]: Building CFG for each procedure with an implementation [2024-10-24 05:19:35,398 INFO L? ?]: Removed 16 outVars from TransFormulas that were not future-live. [2024-10-24 05:19:35,399 INFO L287 CfgBuilder]: Performing block encoding [2024-10-24 05:19:35,443 INFO L309 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2024-10-24 05:19:35,444 INFO L314 CfgBuilder]: Removed 1 assume(true) statements. [2024-10-24 05:19:35,445 INFO L201 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:19:35 BoogieIcfgContainer [2024-10-24 05:19:35,445 INFO L131 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2024-10-24 05:19:35,447 INFO L112 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2024-10-24 05:19:35,448 INFO L270 PluginConnector]: Initializing TraceAbstraction... [2024-10-24 05:19:35,451 INFO L274 PluginConnector]: TraceAbstraction initialized [2024-10-24 05:19:35,451 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 24.10 05:19:34" (1/3) ... [2024-10-24 05:19:35,452 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3d5fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:19:35, skipping insertion in model container [2024-10-24 05:19:35,452 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 24.10 05:19:34" (2/3) ... [2024-10-24 05:19:35,453 INFO L204 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@1c3d5fa7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 24.10 05:19:35, skipping insertion in model container [2024-10-24 05:19:35,453 INFO L184 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 24.10 05:19:35" (3/3) ... [2024-10-24 05:19:35,454 INFO L112 eAbstractionObserver]: Analyzing ICFG hardness_codestructure_normal_file-34.i [2024-10-24 05:19:35,473 INFO L209 ceAbstractionStarter]: Automizer settings: Hoare:LoopHeads NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2024-10-24 05:19:35,473 INFO L149 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2024-10-24 05:19:35,555 INFO L332 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2024-10-24 05:19:35,566 INFO L333 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mAutomataTypeConcurrency=PETRI_NET, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopHeads, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@100ea666, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2024-10-24 05:19:35,566 INFO L334 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2024-10-24 05:19:35,571 INFO L276 IsEmpty]: Start isEmpty. Operand has 83 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:35,586 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 05:19:35,586 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:35,587 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:35,588 INFO L396 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:35,595 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:35,596 INFO L85 PathProgramCache]: Analyzing trace with hash -490347701, now seen corresponding path program 1 times [2024-10-24 05:19:35,605 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:35,605 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1182844182] [2024-10-24 05:19:35,606 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:35,606 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:35,742 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,890 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:35,892 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,901 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:35,906 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:35,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:35,916 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,918 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:35,919 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:35,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:35,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:35,937 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:35,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,948 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:35,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,958 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:35,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:35,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:35,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:35,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:35,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:35,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,993 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:35,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:35,997 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:35,998 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,000 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:36,001 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:36,005 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,007 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:36,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:36,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,014 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:36,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:36,018 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:36,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:36,025 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:36,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,036 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:36,039 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:36,039 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1182844182] [2024-10-24 05:19:36,040 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1182844182] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:36,040 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:36,041 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2024-10-24 05:19:36,044 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [984135206] [2024-10-24 05:19:36,045 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:36,049 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 2 states [2024-10-24 05:19:36,049 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:36,073 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 2 interpolants. [2024-10-24 05:19:36,073 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 05:19:36,076 INFO L87 Difference]: Start difference. First operand has 83 states, 53 states have (on average 1.509433962264151) internal successors, (80), 54 states have internal predecessors, (80), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) Second operand has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-24 05:19:36,127 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:36,127 INFO L93 Difference]: Finished difference Result 163 states and 293 transitions. [2024-10-24 05:19:36,129 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 2 states. [2024-10-24 05:19:36,131 INFO L78 Accepts]: Start accepts. Automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) Word has length 164 [2024-10-24 05:19:36,131 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:36,140 INFO L225 Difference]: With dead ends: 163 [2024-10-24 05:19:36,140 INFO L226 Difference]: Without dead ends: 81 [2024-10-24 05:19:36,145 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 83 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 0 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=1, Invalid=1, Unknown=0, NotChecked=0, Total=2 [2024-10-24 05:19:36,149 INFO L432 NwaCegarLoop]: 125 mSDtfsCounter, 0 mSDsluCounter, 0 mSDsCounter, 0 mSdLazyCounter, 4 mSolverCounterSat, 0 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 0 SdHoareTripleChecker+Valid, 125 SdHoareTripleChecker+Invalid, 4 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 0 IncrementalHoareTripleChecker+Valid, 4 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:36,151 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [0 Valid, 125 Invalid, 4 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [0 Valid, 4 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:19:36,164 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 81 states. [2024-10-24 05:19:36,192 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 81 to 81. [2024-10-24 05:19:36,194 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 81 states, 52 states have (on average 1.4423076923076923) internal successors, (75), 52 states have internal predecessors, (75), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:36,196 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 81 states to 81 states and 129 transitions. [2024-10-24 05:19:36,198 INFO L78 Accepts]: Start accepts. Automaton has 81 states and 129 transitions. Word has length 164 [2024-10-24 05:19:36,198 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:36,199 INFO L471 AbstractCegarLoop]: Abstraction has 81 states and 129 transitions. [2024-10-24 05:19:36,199 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 2 states, 2 states have (on average 16.0) internal successors, (32), 2 states have internal predecessors, (32), 2 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 2 states have call successors, (27) [2024-10-24 05:19:36,199 INFO L276 IsEmpty]: Start isEmpty. Operand 81 states and 129 transitions. [2024-10-24 05:19:36,203 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 05:19:36,204 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:36,204 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:36,204 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2024-10-24 05:19:36,205 INFO L396 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:36,205 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:36,205 INFO L85 PathProgramCache]: Analyzing trace with hash 1930445129, now seen corresponding path program 1 times [2024-10-24 05:19:36,206 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:36,206 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1795889691] [2024-10-24 05:19:36,206 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:36,206 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:36,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,401 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:36,402 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,407 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:36,408 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,410 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:36,410 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,412 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:36,413 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,414 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:36,414 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,416 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:36,417 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,418 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:36,419 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,420 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:36,421 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,422 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:36,423 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,424 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:36,425 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,426 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:36,427 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,428 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:36,429 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,430 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:36,431 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,432 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:36,433 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,435 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:36,436 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:36,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,467 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:36,470 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,472 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:36,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,474 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:36,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:36,478 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:36,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,482 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:36,483 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,486 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:36,487 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,488 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:36,489 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,491 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:36,495 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,497 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:36,498 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,499 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:36,500 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:36,503 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:36,504 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:36,504 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1795889691] [2024-10-24 05:19:36,504 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1795889691] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:36,504 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:36,505 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2024-10-24 05:19:36,505 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1206124230] [2024-10-24 05:19:36,505 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:36,507 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2024-10-24 05:19:36,508 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:36,509 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2024-10-24 05:19:36,510 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 05:19:36,510 INFO L87 Difference]: Start difference. First operand 81 states and 129 transitions. Second operand has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:36,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:36,566 INFO L93 Difference]: Finished difference Result 195 states and 311 transitions. [2024-10-24 05:19:36,567 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2024-10-24 05:19:36,567 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 164 [2024-10-24 05:19:36,568 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:36,570 INFO L225 Difference]: With dead ends: 195 [2024-10-24 05:19:36,570 INFO L226 Difference]: Without dead ends: 115 [2024-10-24 05:19:36,571 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 57 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2024-10-24 05:19:36,574 INFO L432 NwaCegarLoop]: 124 mSDtfsCounter, 50 mSDsluCounter, 120 mSDsCounter, 0 mSdLazyCounter, 14 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 50 SdHoareTripleChecker+Valid, 244 SdHoareTripleChecker+Invalid, 15 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 14 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:36,574 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [50 Valid, 244 Invalid, 15 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 14 Invalid, 0 Unknown, 0 Unchecked, 0.0s Time] [2024-10-24 05:19:36,575 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 115 states. [2024-10-24 05:19:36,585 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 115 to 85. [2024-10-24 05:19:36,586 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 85 states, 56 states have (on average 1.4642857142857142) internal successors, (82), 56 states have internal predecessors, (82), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:36,588 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 136 transitions. [2024-10-24 05:19:36,588 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 136 transitions. Word has length 164 [2024-10-24 05:19:36,592 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:36,594 INFO L471 AbstractCegarLoop]: Abstraction has 85 states and 136 transitions. [2024-10-24 05:19:36,595 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 3 states have (on average 10.666666666666666) internal successors, (32), 3 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:36,595 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 136 transitions. [2024-10-24 05:19:36,597 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 05:19:36,598 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:36,598 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:36,598 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2024-10-24 05:19:36,599 INFO L396 AbstractCegarLoop]: === Iteration 3 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:36,599 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:36,599 INFO L85 PathProgramCache]: Analyzing trace with hash -1663457589, now seen corresponding path program 1 times [2024-10-24 05:19:36,599 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:36,599 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [111029788] [2024-10-24 05:19:36,600 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:36,600 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:36,705 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,902 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:37,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,906 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:37,907 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:37,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,910 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:37,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:37,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:37,913 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,914 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:37,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:37,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:37,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:37,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:37,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:37,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:37,928 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:37,930 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:37,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,933 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:37,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:37,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:37,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:37,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,944 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:37,945 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,946 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:37,946 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,947 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:37,948 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,949 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:37,950 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,951 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:37,952 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,953 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:37,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,955 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:37,959 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,960 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:37,961 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:37,963 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:37,963 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:37,963 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [111029788] [2024-10-24 05:19:37,964 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [111029788] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:37,964 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:37,964 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 05:19:37,964 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1793911317] [2024-10-24 05:19:37,964 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:37,965 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 05:19:37,965 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:37,966 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 05:19:37,966 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 05:19:37,966 INFO L87 Difference]: Start difference. First operand 85 states and 136 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:38,402 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:38,403 INFO L93 Difference]: Finished difference Result 262 states and 413 transitions. [2024-10-24 05:19:38,403 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 05:19:38,404 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 164 [2024-10-24 05:19:38,404 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:38,407 INFO L225 Difference]: With dead ends: 262 [2024-10-24 05:19:38,409 INFO L226 Difference]: Without dead ends: 178 [2024-10-24 05:19:38,410 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 63 GetRequests, 56 SyntacticMatches, 1 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:19:38,411 INFO L432 NwaCegarLoop]: 92 mSDtfsCounter, 171 mSDsluCounter, 340 mSDsCounter, 0 mSdLazyCounter, 197 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 171 SdHoareTripleChecker+Valid, 432 SdHoareTripleChecker+Invalid, 198 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 197 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:38,412 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [171 Valid, 432 Invalid, 198 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 197 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 05:19:38,413 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 178 states. [2024-10-24 05:19:38,427 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 178 to 102. [2024-10-24 05:19:38,428 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 102 states, 73 states have (on average 1.5068493150684932) internal successors, (110), 73 states have internal predecessors, (110), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:38,429 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 102 states to 102 states and 164 transitions. [2024-10-24 05:19:38,430 INFO L78 Accepts]: Start accepts. Automaton has 102 states and 164 transitions. Word has length 164 [2024-10-24 05:19:38,430 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:38,431 INFO L471 AbstractCegarLoop]: Abstraction has 102 states and 164 transitions. [2024-10-24 05:19:38,431 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:38,431 INFO L276 IsEmpty]: Start isEmpty. Operand 102 states and 164 transitions. [2024-10-24 05:19:38,435 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 165 [2024-10-24 05:19:38,436 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:38,436 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:38,436 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2024-10-24 05:19:38,436 INFO L396 AbstractCegarLoop]: === Iteration 4 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:38,437 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:38,437 INFO L85 PathProgramCache]: Analyzing trace with hash -1405292151, now seen corresponding path program 1 times [2024-10-24 05:19:38,437 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:38,438 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1180716225] [2024-10-24 05:19:38,438 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:38,438 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:38,486 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,961 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:38,962 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,963 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:38,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:38,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:38,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:38,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:38,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:38,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:38,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,977 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:38,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:38,979 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:38,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:38,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:38,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:38,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:38,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,989 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:38,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,991 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:38,991 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,992 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:38,993 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,994 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:38,995 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:38,999 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:39,000 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,001 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:39,002 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,004 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:39,008 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,009 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:39,009 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,010 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:39,012 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,013 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:39,014 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,015 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:39,015 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,017 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:39,017 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:39,019 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:39,019 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:39,019 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1180716225] [2024-10-24 05:19:39,021 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1180716225] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:39,021 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:39,021 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [7] imperfect sequences [] total 7 [2024-10-24 05:19:39,021 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1653610581] [2024-10-24 05:19:39,021 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:39,023 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 7 states [2024-10-24 05:19:39,023 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:39,024 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2024-10-24 05:19:39,025 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=17, Invalid=25, Unknown=0, NotChecked=0, Total=42 [2024-10-24 05:19:39,025 INFO L87 Difference]: Start difference. First operand 102 states and 164 transitions. Second operand has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:39,285 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:39,285 INFO L93 Difference]: Finished difference Result 264 states and 420 transitions. [2024-10-24 05:19:39,287 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2024-10-24 05:19:39,287 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 164 [2024-10-24 05:19:39,288 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:39,289 INFO L225 Difference]: With dead ends: 264 [2024-10-24 05:19:39,289 INFO L226 Difference]: Without dead ends: 163 [2024-10-24 05:19:39,290 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 62 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=24, Invalid=32, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:19:39,291 INFO L432 NwaCegarLoop]: 133 mSDtfsCounter, 122 mSDsluCounter, 272 mSDsCounter, 0 mSdLazyCounter, 173 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 122 SdHoareTripleChecker+Valid, 405 SdHoareTripleChecker+Invalid, 178 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 173 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:39,294 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [122 Valid, 405 Invalid, 178 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 173 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:19:39,296 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 163 states. [2024-10-24 05:19:39,304 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 163 to 124. [2024-10-24 05:19:39,305 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 124 states, 95 states have (on average 1.5052631578947369) internal successors, (143), 95 states have internal predecessors, (143), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:39,306 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 197 transitions. [2024-10-24 05:19:39,306 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 197 transitions. Word has length 164 [2024-10-24 05:19:39,307 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:39,307 INFO L471 AbstractCegarLoop]: Abstraction has 124 states and 197 transitions. [2024-10-24 05:19:39,307 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 7 states, 7 states have (on average 4.571428571428571) internal successors, (32), 7 states have internal predecessors, (32), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:39,307 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 197 transitions. [2024-10-24 05:19:39,309 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 05:19:39,309 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:39,309 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:39,310 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2024-10-24 05:19:39,310 INFO L396 AbstractCegarLoop]: === Iteration 5 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:39,310 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:39,310 INFO L85 PathProgramCache]: Analyzing trace with hash 1677820591, now seen corresponding path program 1 times [2024-10-24 05:19:39,310 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:39,311 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1278033806] [2024-10-24 05:19:39,311 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:39,311 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:39,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,587 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:42,588 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,590 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:42,590 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,591 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:42,592 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,593 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:42,594 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,597 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:42,599 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,600 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:42,600 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,601 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:42,602 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,603 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:42,604 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,605 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:42,606 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,607 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:42,607 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,608 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:42,609 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,610 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:42,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,611 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:42,613 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,615 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:42,616 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,617 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:42,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,620 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:42,620 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,621 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:42,622 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,623 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:42,623 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,624 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:42,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,627 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:42,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,629 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:42,630 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,631 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:42,632 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,633 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:42,634 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,635 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:42,636 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,637 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:42,637 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:42,639 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:42,639 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:42,639 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1278033806] [2024-10-24 05:19:42,639 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1278033806] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:42,639 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:42,640 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [12] imperfect sequences [] total 12 [2024-10-24 05:19:42,640 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [554418517] [2024-10-24 05:19:42,641 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:42,641 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2024-10-24 05:19:42,641 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:42,642 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2024-10-24 05:19:42,642 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:19:42,643 INFO L87 Difference]: Start difference. First operand 124 states and 197 transitions. Second operand has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:43,438 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:43,439 INFO L93 Difference]: Finished difference Result 357 states and 559 transitions. [2024-10-24 05:19:43,440 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 05:19:43,440 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-24 05:19:43,440 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:43,442 INFO L225 Difference]: With dead ends: 357 [2024-10-24 05:19:43,442 INFO L226 Difference]: Without dead ends: 234 [2024-10-24 05:19:43,447 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 23 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=62, Invalid=94, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:19:43,447 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 235 mSDsluCounter, 434 mSDsCounter, 0 mSdLazyCounter, 389 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 235 SdHoareTripleChecker+Valid, 563 SdHoareTripleChecker+Invalid, 392 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 389 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:43,448 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [235 Valid, 563 Invalid, 392 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 389 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 05:19:43,450 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 234 states. [2024-10-24 05:19:43,464 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 234 to 137. [2024-10-24 05:19:43,467 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 137 states, 108 states have (on average 1.5277777777777777) internal successors, (165), 108 states have internal predecessors, (165), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:43,469 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 137 states to 137 states and 219 transitions. [2024-10-24 05:19:43,469 INFO L78 Accepts]: Start accepts. Automaton has 137 states and 219 transitions. Word has length 165 [2024-10-24 05:19:43,469 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:43,470 INFO L471 AbstractCegarLoop]: Abstraction has 137 states and 219 transitions. [2024-10-24 05:19:43,470 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 12 states, 12 states have (on average 2.75) internal successors, (33), 12 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:43,470 INFO L276 IsEmpty]: Start isEmpty. Operand 137 states and 219 transitions. [2024-10-24 05:19:43,474 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 05:19:43,474 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:43,476 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:43,476 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2024-10-24 05:19:43,476 INFO L396 AbstractCegarLoop]: === Iteration 6 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:43,477 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:43,477 INFO L85 PathProgramCache]: Analyzing trace with hash 1735078893, now seen corresponding path program 1 times [2024-10-24 05:19:43,477 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:43,477 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2107390393] [2024-10-24 05:19:43,477 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:43,478 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:43,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:46,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,174 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:46,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:46,178 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,181 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:46,182 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,183 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:46,184 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,189 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:46,190 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,191 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:46,194 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,195 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:46,196 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,197 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:46,198 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,200 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:46,201 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,202 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:46,203 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,204 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:46,205 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,206 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:46,206 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,207 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:46,208 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,209 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:46,210 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,212 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:46,213 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,214 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:46,215 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,216 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:46,217 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,220 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:46,222 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,224 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:46,225 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,227 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:46,229 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,230 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:46,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,232 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:46,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,234 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:46,235 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,236 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:46,237 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,239 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:46,242 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,243 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:46,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:46,246 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:46,247 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:46,247 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2107390393] [2024-10-24 05:19:46,247 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2107390393] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:46,248 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:46,248 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:19:46,248 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [415102821] [2024-10-24 05:19:46,248 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:46,248 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:19:46,249 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:46,249 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:19:46,249 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=32, Invalid=58, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:19:46,249 INFO L87 Difference]: Start difference. First operand 137 states and 219 transitions. Second operand has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:47,239 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:47,239 INFO L93 Difference]: Finished difference Result 386 states and 609 transitions. [2024-10-24 05:19:47,240 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2024-10-24 05:19:47,241 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-24 05:19:47,241 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:47,243 INFO L225 Difference]: With dead ends: 386 [2024-10-24 05:19:47,243 INFO L226 Difference]: Without dead ends: 250 [2024-10-24 05:19:47,244 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 59 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=50, Invalid=82, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:19:47,245 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 214 mSDsluCounter, 516 mSDsCounter, 0 mSdLazyCounter, 476 mSolverCounterSat, 5 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 214 SdHoareTripleChecker+Valid, 645 SdHoareTripleChecker+Invalid, 481 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 5 IncrementalHoareTripleChecker+Valid, 476 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.8s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:47,247 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [214 Valid, 645 Invalid, 481 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [5 Valid, 476 Invalid, 0 Unknown, 0 Unchecked, 0.8s Time] [2024-10-24 05:19:47,248 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 250 states. [2024-10-24 05:19:47,260 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 250 to 156. [2024-10-24 05:19:47,261 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 156 states, 127 states have (on average 1.5354330708661417) internal successors, (195), 127 states have internal predecessors, (195), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:47,261 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 156 states to 156 states and 249 transitions. [2024-10-24 05:19:47,262 INFO L78 Accepts]: Start accepts. Automaton has 156 states and 249 transitions. Word has length 165 [2024-10-24 05:19:47,262 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:47,262 INFO L471 AbstractCegarLoop]: Abstraction has 156 states and 249 transitions. [2024-10-24 05:19:47,263 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.3) internal successors, (33), 10 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:47,263 INFO L276 IsEmpty]: Start isEmpty. Operand 156 states and 249 transitions. [2024-10-24 05:19:47,266 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 05:19:47,267 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:47,267 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:47,267 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2024-10-24 05:19:47,267 INFO L396 AbstractCegarLoop]: === Iteration 7 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:47,268 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:47,269 INFO L85 PathProgramCache]: Analyzing trace with hash 1993244331, now seen corresponding path program 1 times [2024-10-24 05:19:47,269 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:47,269 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [885040330] [2024-10-24 05:19:47,269 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:47,269 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:47,294 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,304 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:48,305 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,306 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:48,306 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,308 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:48,308 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,309 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:48,310 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,310 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:48,311 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,311 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:48,312 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:48,313 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,314 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:48,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:48,316 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,316 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:48,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:48,318 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:48,319 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,320 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:48,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:48,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:48,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:48,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:48,325 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,326 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:48,327 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:48,328 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:48,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,330 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:48,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,332 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:48,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:48,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:48,335 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,336 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:48,337 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:48,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,339 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:48,340 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:48,341 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:48,341 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:48,341 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [885040330] [2024-10-24 05:19:48,342 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [885040330] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:48,342 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:48,342 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 05:19:48,342 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656107841] [2024-10-24 05:19:48,342 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:48,343 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 05:19:48,343 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:48,343 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 05:19:48,343 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:19:48,344 INFO L87 Difference]: Start difference. First operand 156 states and 249 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:48,934 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:48,935 INFO L93 Difference]: Finished difference Result 393 states and 620 transitions. [2024-10-24 05:19:48,936 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 05:19:48,937 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-24 05:19:48,937 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:48,939 INFO L225 Difference]: With dead ends: 393 [2024-10-24 05:19:48,939 INFO L226 Difference]: Without dead ends: 238 [2024-10-24 05:19:48,940 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 65 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-24 05:19:48,940 INFO L432 NwaCegarLoop]: 129 mSDtfsCounter, 172 mSDsluCounter, 376 mSDsCounter, 0 mSdLazyCounter, 269 mSolverCounterSat, 2 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.5s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 505 SdHoareTripleChecker+Invalid, 271 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 2 IncrementalHoareTripleChecker+Valid, 269 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.5s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:48,943 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 505 Invalid, 271 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [2 Valid, 269 Invalid, 0 Unknown, 0 Unchecked, 0.5s Time] [2024-10-24 05:19:48,944 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 238 states. [2024-10-24 05:19:48,949 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 238 to 144. [2024-10-24 05:19:48,949 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 144 states, 115 states have (on average 1.5217391304347827) internal successors, (175), 115 states have internal predecessors, (175), 27 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 27 states have call predecessors, (27), 27 states have call successors, (27) [2024-10-24 05:19:48,950 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 144 states to 144 states and 229 transitions. [2024-10-24 05:19:48,951 INFO L78 Accepts]: Start accepts. Automaton has 144 states and 229 transitions. Word has length 165 [2024-10-24 05:19:48,951 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:48,951 INFO L471 AbstractCegarLoop]: Abstraction has 144 states and 229 transitions. [2024-10-24 05:19:48,952 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:48,952 INFO L276 IsEmpty]: Start isEmpty. Operand 144 states and 229 transitions. [2024-10-24 05:19:48,953 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 05:19:48,953 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:48,953 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:48,954 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2024-10-24 05:19:48,954 INFO L396 AbstractCegarLoop]: === Iteration 8 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:48,954 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:48,955 INFO L85 PathProgramCache]: Analyzing trace with hash 1091014577, now seen corresponding path program 1 times [2024-10-24 05:19:48,955 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:48,955 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1304133247] [2024-10-24 05:19:48,955 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:48,956 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:48,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,142 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:49,143 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,144 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:49,144 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,146 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:49,146 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,147 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:49,147 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,148 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:49,148 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,149 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:49,150 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,150 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:49,151 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,152 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:49,152 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,153 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:49,153 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,154 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:49,155 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,155 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:49,156 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,156 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:49,157 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,157 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:49,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,159 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:49,159 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,160 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:49,160 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,161 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:49,162 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,162 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:49,163 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,163 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:49,164 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,164 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:49,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,166 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:49,167 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,168 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:49,169 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,169 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:49,170 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,171 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:49,171 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,172 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:49,172 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,173 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:49,174 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,175 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:49,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,177 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:49,177 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:49,179 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:49,180 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:49,180 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1304133247] [2024-10-24 05:19:49,180 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1304133247] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:49,180 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:49,180 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:19:49,180 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [183207428] [2024-10-24 05:19:49,180 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:49,181 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 05:19:49,181 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:49,181 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 05:19:49,181 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 05:19:49,181 INFO L87 Difference]: Start difference. First operand 144 states and 229 transitions. Second operand has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:49,391 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:49,391 INFO L93 Difference]: Finished difference Result 330 states and 522 transitions. [2024-10-24 05:19:49,391 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 05:19:49,392 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-24 05:19:49,394 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:49,395 INFO L225 Difference]: With dead ends: 330 [2024-10-24 05:19:49,395 INFO L226 Difference]: Without dead ends: 187 [2024-10-24 05:19:49,395 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 05:19:49,396 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 61 mSDsluCounter, 185 mSDsCounter, 0 mSdLazyCounter, 153 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.2s Time, 0 mProtectedPredicate, 0 mProtectedAction, 61 SdHoareTripleChecker+Valid, 329 SdHoareTripleChecker+Invalid, 154 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 153 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:49,396 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [61 Valid, 329 Invalid, 154 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 153 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2024-10-24 05:19:49,397 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 187 states. [2024-10-24 05:19:49,404 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 187 to 184. [2024-10-24 05:19:49,405 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 184 states, 150 states have (on average 1.5266666666666666) internal successors, (229), 151 states have internal predecessors, (229), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:19:49,406 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 184 states to 184 states and 291 transitions. [2024-10-24 05:19:49,406 INFO L78 Accepts]: Start accepts. Automaton has 184 states and 291 transitions. Word has length 165 [2024-10-24 05:19:49,407 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:49,407 INFO L471 AbstractCegarLoop]: Abstraction has 184 states and 291 transitions. [2024-10-24 05:19:49,407 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.25) internal successors, (33), 4 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:49,407 INFO L276 IsEmpty]: Start isEmpty. Operand 184 states and 291 transitions. [2024-10-24 05:19:49,410 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 166 [2024-10-24 05:19:49,410 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:49,410 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:49,410 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2024-10-24 05:19:49,411 INFO L396 AbstractCegarLoop]: === Iteration 9 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:49,411 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:49,411 INFO L85 PathProgramCache]: Analyzing trace with hash -421828527, now seen corresponding path program 1 times [2024-10-24 05:19:49,411 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:49,411 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [752855399] [2024-10-24 05:19:49,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:49,412 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:49,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:50,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:50,350 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,351 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:50,352 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,353 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:50,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:50,355 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,356 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:50,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,357 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:50,358 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,359 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:50,359 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,360 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:50,361 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,361 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:50,362 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,363 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:50,363 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,364 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:50,365 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,365 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:50,366 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,367 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:50,367 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,368 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:50,368 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,369 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:50,370 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,371 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:50,371 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,373 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:50,373 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,374 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:50,374 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,376 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:50,376 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,377 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:50,378 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,379 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:50,380 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,382 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:50,383 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,384 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:50,384 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,386 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:50,387 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,388 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:50,388 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,389 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:50,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:50,392 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:50,392 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:50,392 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [752855399] [2024-10-24 05:19:50,392 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [752855399] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:50,392 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:50,392 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 05:19:50,393 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [69516390] [2024-10-24 05:19:50,393 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:50,393 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 05:19:50,394 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:50,394 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 05:19:50,394 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:19:50,395 INFO L87 Difference]: Start difference. First operand 184 states and 291 transitions. Second operand has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:50,864 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:50,864 INFO L93 Difference]: Finished difference Result 445 states and 700 transitions. [2024-10-24 05:19:50,865 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 05:19:50,865 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 165 [2024-10-24 05:19:50,865 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:50,868 INFO L225 Difference]: With dead ends: 445 [2024-10-24 05:19:50,868 INFO L226 Difference]: Without dead ends: 262 [2024-10-24 05:19:50,869 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 64 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-24 05:19:50,870 INFO L432 NwaCegarLoop]: 135 mSDtfsCounter, 181 mSDsluCounter, 433 mSDsCounter, 0 mSdLazyCounter, 291 mSolverCounterSat, 7 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 181 SdHoareTripleChecker+Valid, 568 SdHoareTripleChecker+Invalid, 298 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 7 IncrementalHoareTripleChecker+Valid, 291 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:50,870 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [181 Valid, 568 Invalid, 298 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [7 Valid, 291 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2024-10-24 05:19:50,871 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 262 states. [2024-10-24 05:19:50,878 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 262 to 187. [2024-10-24 05:19:50,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.5098039215686274) internal successors, (231), 154 states have internal predecessors, (231), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:19:50,879 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 293 transitions. [2024-10-24 05:19:50,879 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 293 transitions. Word has length 165 [2024-10-24 05:19:50,880 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:50,880 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 293 transitions. [2024-10-24 05:19:50,880 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.125) internal successors, (33), 8 states have internal predecessors, (33), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:50,880 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 293 transitions. [2024-10-24 05:19:50,882 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-24 05:19:50,882 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:50,882 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:50,882 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2024-10-24 05:19:50,882 INFO L396 AbstractCegarLoop]: === Iteration 10 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:50,883 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:50,883 INFO L85 PathProgramCache]: Analyzing trace with hash 930271011, now seen corresponding path program 1 times [2024-10-24 05:19:50,883 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:50,883 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [31380723] [2024-10-24 05:19:50,883 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:50,883 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:50,904 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,019 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:51,020 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,021 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:51,021 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,022 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:51,022 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,023 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:51,023 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,024 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:51,024 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,025 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:51,026 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,026 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:51,027 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,027 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:51,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,028 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:51,029 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,029 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:51,030 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,030 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,031 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:51,031 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,033 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:51,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,035 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:51,036 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,036 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:51,037 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,038 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:51,041 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,042 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:51,043 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,043 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:51,044 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,045 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:51,045 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,046 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:51,046 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,048 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:51,048 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,050 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:51,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,052 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:51,052 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,053 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:51,054 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,055 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:51,055 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,056 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:51,056 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,057 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:51,058 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:51,059 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:51,059 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:51,059 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [31380723] [2024-10-24 05:19:51,059 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [31380723] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:51,060 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:51,060 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:19:51,060 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1767954944] [2024-10-24 05:19:51,060 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:51,060 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 05:19:51,060 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:51,061 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 05:19:51,062 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 05:19:51,062 INFO L87 Difference]: Start difference. First operand 187 states and 293 transitions. Second operand has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:51,226 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:51,227 INFO L93 Difference]: Finished difference Result 377 states and 589 transitions. [2024-10-24 05:19:51,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 05:19:51,227 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-24 05:19:51,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:51,230 INFO L225 Difference]: With dead ends: 377 [2024-10-24 05:19:51,230 INFO L226 Difference]: Without dead ends: 191 [2024-10-24 05:19:51,230 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 59 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 05:19:51,231 INFO L432 NwaCegarLoop]: 144 mSDtfsCounter, 59 mSDsluCounter, 208 mSDsCounter, 0 mSdLazyCounter, 132 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 59 SdHoareTripleChecker+Valid, 352 SdHoareTripleChecker+Invalid, 133 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 132 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:51,231 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [59 Valid, 352 Invalid, 133 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 132 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:19:51,232 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 191 states. [2024-10-24 05:19:51,241 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 191 to 187. [2024-10-24 05:19:51,242 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.5098039215686274) internal successors, (231), 154 states have internal predecessors, (231), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:19:51,243 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 293 transitions. [2024-10-24 05:19:51,244 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 293 transitions. Word has length 166 [2024-10-24 05:19:51,244 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:51,244 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 293 transitions. [2024-10-24 05:19:51,244 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.5) internal successors, (34), 4 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:51,244 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 293 transitions. [2024-10-24 05:19:51,246 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-24 05:19:51,246 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:51,247 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:51,247 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2024-10-24 05:19:51,247 INFO L396 AbstractCegarLoop]: === Iteration 11 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:51,248 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:51,248 INFO L85 PathProgramCache]: Analyzing trace with hash -1944386909, now seen corresponding path program 1 times [2024-10-24 05:19:51,248 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:51,248 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1445912232] [2024-10-24 05:19:51,248 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:51,248 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:51,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,798 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:54,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,801 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:54,801 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,802 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:54,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,803 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:54,803 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,804 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:54,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,805 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:54,806 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,806 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:54,807 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,807 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:54,808 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,808 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,809 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:54,809 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,810 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:54,811 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,811 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:54,812 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,812 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:54,813 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,813 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,814 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:54,814 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,815 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:54,816 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,816 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:54,817 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,817 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:54,818 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,818 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:54,819 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,820 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:54,820 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,821 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:54,821 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,822 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:54,822 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,823 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:54,824 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,824 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:54,825 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,826 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:54,826 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,827 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:54,827 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,828 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:54,828 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:54,830 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:54,830 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:54,830 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1445912232] [2024-10-24 05:19:54,830 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1445912232] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:54,831 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:54,831 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 05:19:54,831 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1792648844] [2024-10-24 05:19:54,831 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:54,831 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 05:19:54,831 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:54,832 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 05:19:54,832 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=49, Invalid=107, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:19:54,832 INFO L87 Difference]: Start difference. First operand 187 states and 293 transitions. Second operand has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:56,278 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:19:56,278 INFO L93 Difference]: Finished difference Result 468 states and 723 transitions. [2024-10-24 05:19:56,280 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:19:56,280 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-24 05:19:56,281 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:19:56,283 INFO L225 Difference]: With dead ends: 468 [2024-10-24 05:19:56,283 INFO L226 Difference]: Without dead ends: 282 [2024-10-24 05:19:56,283 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 35 ImplicationChecksByTransitivity, 0.9s TimeCoverageRelationStatistics Valid=95, Invalid=177, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:19:56,284 INFO L432 NwaCegarLoop]: 148 mSDtfsCounter, 398 mSDsluCounter, 697 mSDsCounter, 0 mSdLazyCounter, 865 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 398 SdHoareTripleChecker+Valid, 845 SdHoareTripleChecker+Invalid, 869 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 865 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:19:56,284 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [398 Valid, 845 Invalid, 869 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 865 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 05:19:56,287 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 282 states. [2024-10-24 05:19:56,296 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 282 to 185. [2024-10-24 05:19:56,296 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 151 states have (on average 1.5033112582781456) internal successors, (227), 152 states have internal predecessors, (227), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:19:56,297 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 289 transitions. [2024-10-24 05:19:56,298 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 289 transitions. Word has length 166 [2024-10-24 05:19:56,299 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:19:56,299 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 289 transitions. [2024-10-24 05:19:56,299 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.6153846153846154) internal successors, (34), 13 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:19:56,299 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 289 transitions. [2024-10-24 05:19:56,301 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-24 05:19:56,301 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:19:56,301 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:19:56,301 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2024-10-24 05:19:56,301 INFO L396 AbstractCegarLoop]: === Iteration 12 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:19:56,302 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:19:56,302 INFO L85 PathProgramCache]: Analyzing trace with hash -1887128607, now seen corresponding path program 1 times [2024-10-24 05:19:56,302 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:19:56,302 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [221229379] [2024-10-24 05:19:56,302 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:19:56,302 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:19:56,331 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,908 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:19:58,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,911 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:19:58,912 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,913 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:19:58,914 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,915 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:19:58,915 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,916 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:19:58,917 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,917 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:19:58,918 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,920 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:19:58,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,921 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:19:58,921 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,922 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:19:58,922 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,923 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:19:58,923 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,924 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:19:58,924 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,925 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:19:58,925 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,926 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:19:58,926 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,927 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:19:58,927 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,929 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:19:58,929 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,930 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:19:58,931 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,931 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:19:58,932 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,932 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:19:58,933 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,934 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:19:58,934 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,935 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:19:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,936 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:19:58,936 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,937 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:19:58,938 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,938 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:19:58,939 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,939 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:19:58,940 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,941 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:19:58,941 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,942 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:19:58,942 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,943 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:19:58,943 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:19:58,945 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:19:58,945 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:19:58,945 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [221229379] [2024-10-24 05:19:58,945 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [221229379] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:19:58,945 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:19:58,945 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [9] imperfect sequences [] total 9 [2024-10-24 05:19:58,945 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1085174171] [2024-10-24 05:19:58,945 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:19:58,946 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 9 states [2024-10-24 05:19:58,946 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:19:58,946 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2024-10-24 05:19:58,946 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2024-10-24 05:19:58,947 INFO L87 Difference]: Start difference. First operand 185 states and 289 transitions. Second operand has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:00,809 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:00,809 INFO L93 Difference]: Finished difference Result 544 states and 841 transitions. [2024-10-24 05:20:00,813 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 05:20:00,813 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-24 05:20:00,813 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:00,815 INFO L225 Difference]: With dead ends: 544 [2024-10-24 05:20:00,815 INFO L226 Difference]: Without dead ends: 360 [2024-10-24 05:20:00,816 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 71 GetRequests, 58 SyntacticMatches, 1 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 9 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=72, Invalid=110, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:20:00,817 INFO L432 NwaCegarLoop]: 136 mSDtfsCounter, 347 mSDsluCounter, 444 mSDsCounter, 0 mSdLazyCounter, 409 mSolverCounterSat, 6 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 347 SdHoareTripleChecker+Valid, 580 SdHoareTripleChecker+Invalid, 415 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 6 IncrementalHoareTripleChecker+Valid, 409 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:00,817 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [347 Valid, 580 Invalid, 415 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [6 Valid, 409 Invalid, 0 Unknown, 0 Unchecked, 1.1s Time] [2024-10-24 05:20:00,817 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 360 states. [2024-10-24 05:20:00,825 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 360 to 202. [2024-10-24 05:20:00,826 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 202 states, 168 states have (on average 1.5119047619047619) internal successors, (254), 169 states have internal predecessors, (254), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:20:00,826 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 202 states to 202 states and 316 transitions. [2024-10-24 05:20:00,827 INFO L78 Accepts]: Start accepts. Automaton has 202 states and 316 transitions. Word has length 166 [2024-10-24 05:20:00,827 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:00,827 INFO L471 AbstractCegarLoop]: Abstraction has 202 states and 316 transitions. [2024-10-24 05:20:00,827 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 9 states, 9 states have (on average 3.7777777777777777) internal successors, (34), 9 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:00,828 INFO L276 IsEmpty]: Start isEmpty. Operand 202 states and 316 transitions. [2024-10-24 05:20:00,829 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 167 [2024-10-24 05:20:00,829 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:00,829 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:00,830 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11 [2024-10-24 05:20:00,830 INFO L396 AbstractCegarLoop]: === Iteration 13 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:00,830 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:00,830 INFO L85 PathProgramCache]: Analyzing trace with hash -1628963169, now seen corresponding path program 1 times [2024-10-24 05:20:00,830 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:00,830 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [208798893] [2024-10-24 05:20:00,831 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:00,831 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:00,856 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,653 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:02,654 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,656 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:02,656 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,657 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,658 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:02,658 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,659 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:02,659 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,660 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:02,660 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,661 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:02,661 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,662 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:02,662 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,663 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:02,663 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,664 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:02,664 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:02,665 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,665 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:02,666 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,666 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:02,667 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,667 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:02,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,668 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:02,669 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,669 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:02,670 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,670 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:02,671 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,671 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:02,672 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,672 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:02,673 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,673 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:02,674 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,674 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:02,675 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,675 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:02,676 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,676 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:02,677 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,677 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:02,678 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,679 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:02,679 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,680 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:02,680 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,681 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:02,681 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:02,682 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:02,683 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:02,683 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [208798893] [2024-10-24 05:20:02,683 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [208798893] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:02,683 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:02,683 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 05:20:02,683 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [639888884] [2024-10-24 05:20:02,684 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:02,684 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 05:20:02,684 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:02,685 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 05:20:02,685 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=45, Invalid=65, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:20:02,685 INFO L87 Difference]: Start difference. First operand 202 states and 316 transitions. Second operand has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:03,962 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:03,963 INFO L93 Difference]: Finished difference Result 498 states and 774 transitions. [2024-10-24 05:20:03,963 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:20:03,964 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 166 [2024-10-24 05:20:03,964 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:03,966 INFO L225 Difference]: With dead ends: 498 [2024-10-24 05:20:03,966 INFO L226 Difference]: Without dead ends: 297 [2024-10-24 05:20:03,967 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 10 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=55, Invalid=77, Unknown=0, NotChecked=0, Total=132 [2024-10-24 05:20:03,967 INFO L432 NwaCegarLoop]: 157 mSDtfsCounter, 194 mSDsluCounter, 600 mSDsCounter, 0 mSdLazyCounter, 848 mSolverCounterSat, 4 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 194 SdHoareTripleChecker+Valid, 757 SdHoareTripleChecker+Invalid, 852 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 4 IncrementalHoareTripleChecker+Valid, 848 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:03,968 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [194 Valid, 757 Invalid, 852 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [4 Valid, 848 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 05:20:03,968 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 297 states. [2024-10-24 05:20:03,984 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 297 to 187. [2024-10-24 05:20:03,985 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 187 states, 153 states have (on average 1.4967320261437909) internal successors, (229), 154 states have internal predecessors, (229), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:20:03,986 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 187 states to 187 states and 291 transitions. [2024-10-24 05:20:03,987 INFO L78 Accepts]: Start accepts. Automaton has 187 states and 291 transitions. Word has length 166 [2024-10-24 05:20:03,988 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:03,988 INFO L471 AbstractCegarLoop]: Abstraction has 187 states and 291 transitions. [2024-10-24 05:20:03,988 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.090909090909091) internal successors, (34), 11 states have internal predecessors, (34), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:03,988 INFO L276 IsEmpty]: Start isEmpty. Operand 187 states and 291 transitions. [2024-10-24 05:20:03,990 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 05:20:03,990 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:03,990 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:03,990 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable12 [2024-10-24 05:20:03,990 INFO L396 AbstractCegarLoop]: === Iteration 14 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:03,991 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:03,991 INFO L85 PathProgramCache]: Analyzing trace with hash -347352754, now seen corresponding path program 1 times [2024-10-24 05:20:03,991 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:03,991 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [873464860] [2024-10-24 05:20:03,991 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:03,992 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:04,013 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,105 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:04,105 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,106 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:04,107 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,107 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:04,108 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,108 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:04,109 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,111 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:04,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,113 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:04,114 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,116 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:04,117 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,117 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:04,118 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,118 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:04,119 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,119 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:04,120 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,120 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,121 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:04,121 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,122 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:04,122 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,123 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:04,123 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,124 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:04,124 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,125 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:04,125 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,126 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:04,126 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,127 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:04,127 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,128 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:04,128 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,129 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,130 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:04,130 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,131 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:04,132 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,133 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:04,133 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,134 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:04,134 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,135 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:04,135 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,136 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:04,136 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,137 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:04,137 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:04,139 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:04,139 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:04,139 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [873464860] [2024-10-24 05:20:04,139 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [873464860] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:04,139 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:04,139 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2024-10-24 05:20:04,139 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1718873277] [2024-10-24 05:20:04,139 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:04,140 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2024-10-24 05:20:04,140 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:04,140 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2024-10-24 05:20:04,141 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2024-10-24 05:20:04,141 INFO L87 Difference]: Start difference. First operand 187 states and 291 transitions. Second operand has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:04,301 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:04,301 INFO L93 Difference]: Finished difference Result 376 states and 583 transitions. [2024-10-24 05:20:04,302 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2024-10-24 05:20:04,302 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-24 05:20:04,302 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:04,304 INFO L225 Difference]: With dead ends: 376 [2024-10-24 05:20:04,304 INFO L226 Difference]: Without dead ends: 190 [2024-10-24 05:20:04,304 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 60 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2024-10-24 05:20:04,305 INFO L432 NwaCegarLoop]: 139 mSDtfsCounter, 57 mSDsluCounter, 202 mSDsCounter, 0 mSdLazyCounter, 124 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 57 SdHoareTripleChecker+Valid, 341 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 124 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.1s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:04,308 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [57 Valid, 341 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 124 Invalid, 0 Unknown, 0 Unchecked, 0.1s Time] [2024-10-24 05:20:04,308 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 190 states. [2024-10-24 05:20:04,319 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 190 to 185. [2024-10-24 05:20:04,320 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 151 states have (on average 1.490066225165563) internal successors, (225), 152 states have internal predecessors, (225), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:20:04,320 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 287 transitions. [2024-10-24 05:20:04,321 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 287 transitions. Word has length 167 [2024-10-24 05:20:04,322 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:04,322 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 287 transitions. [2024-10-24 05:20:04,322 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 4 states have (on average 8.75) internal successors, (35), 4 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:04,322 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 287 transitions. [2024-10-24 05:20:04,324 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 05:20:04,324 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:04,324 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:04,324 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13 [2024-10-24 05:20:04,324 INFO L396 AbstractCegarLoop]: === Iteration 15 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:04,325 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:04,325 INFO L85 PathProgramCache]: Analyzing trace with hash 885056765, now seen corresponding path program 1 times [2024-10-24 05:20:04,325 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:04,325 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [711655572] [2024-10-24 05:20:04,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:04,325 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:04,357 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,745 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:05,746 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,746 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:05,747 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:05,748 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,748 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:05,749 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,749 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,750 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:05,750 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,751 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:05,751 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:05,752 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,752 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:05,753 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,753 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,754 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:05,754 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,755 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:05,755 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,756 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:05,756 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,757 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:05,757 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,758 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:05,758 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,759 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:05,759 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,760 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:05,760 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,761 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:05,761 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,762 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:05,762 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,763 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:05,763 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,764 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:05,764 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,765 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:05,765 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,766 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:05,766 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,767 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:05,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,768 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:05,768 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,769 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:05,769 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,770 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:05,770 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:05,772 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:05,772 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:05,772 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [711655572] [2024-10-24 05:20:05,772 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [711655572] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:05,772 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:05,772 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2024-10-24 05:20:05,773 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [429987595] [2024-10-24 05:20:05,773 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:05,773 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 8 states [2024-10-24 05:20:05,773 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:05,774 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2024-10-24 05:20:05,774 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=33, Unknown=0, NotChecked=0, Total=56 [2024-10-24 05:20:05,774 INFO L87 Difference]: Start difference. First operand 185 states and 287 transitions. Second operand has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:06,559 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:06,560 INFO L93 Difference]: Finished difference Result 460 states and 709 transitions. [2024-10-24 05:20:06,560 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2024-10-24 05:20:06,561 INFO L78 Accepts]: Start accepts. Automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-24 05:20:06,561 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:06,563 INFO L225 Difference]: With dead ends: 460 [2024-10-24 05:20:06,563 INFO L226 Difference]: Without dead ends: 276 [2024-10-24 05:20:06,564 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 68 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=31, Invalid=41, Unknown=0, NotChecked=0, Total=72 [2024-10-24 05:20:06,567 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 133 mSDsluCounter, 391 mSDsCounter, 0 mSdLazyCounter, 253 mSolverCounterSat, 1 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.7s Time, 0 mProtectedPredicate, 0 mProtectedAction, 133 SdHoareTripleChecker+Valid, 560 SdHoareTripleChecker+Invalid, 254 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 1 IncrementalHoareTripleChecker+Valid, 253 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:06,567 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [133 Valid, 560 Invalid, 254 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [1 Valid, 253 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 05:20:06,567 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 276 states. [2024-10-24 05:20:06,576 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 276 to 185. [2024-10-24 05:20:06,577 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 185 states, 151 states have (on average 1.490066225165563) internal successors, (225), 152 states have internal predecessors, (225), 31 states have call successors, (31), 2 states have call predecessors, (31), 2 states have return successors, (31), 30 states have call predecessors, (31), 31 states have call successors, (31) [2024-10-24 05:20:06,578 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 185 states to 185 states and 287 transitions. [2024-10-24 05:20:06,578 INFO L78 Accepts]: Start accepts. Automaton has 185 states and 287 transitions. Word has length 167 [2024-10-24 05:20:06,579 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:06,579 INFO L471 AbstractCegarLoop]: Abstraction has 185 states and 287 transitions. [2024-10-24 05:20:06,579 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 8 states, 8 states have (on average 4.375) internal successors, (35), 8 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:06,579 INFO L276 IsEmpty]: Start isEmpty. Operand 185 states and 287 transitions. [2024-10-24 05:20:06,580 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 05:20:06,580 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:06,580 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:06,581 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable14 [2024-10-24 05:20:06,581 INFO L396 AbstractCegarLoop]: === Iteration 16 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:06,581 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:06,581 INFO L85 PathProgramCache]: Analyzing trace with hash -35947590, now seen corresponding path program 1 times [2024-10-24 05:20:06,581 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:06,581 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [565349924] [2024-10-24 05:20:06,582 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:06,582 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:06,625 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,313 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:12,314 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,315 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:12,315 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,317 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:12,317 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,318 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:12,320 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,321 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:12,321 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,322 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:12,322 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,323 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:12,323 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,324 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:12,324 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,325 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:12,326 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,328 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:12,329 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,329 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:12,330 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,331 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:12,332 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,333 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:12,333 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,334 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:12,334 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,335 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:12,336 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,337 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:12,338 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,338 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:12,339 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,340 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:12,341 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,341 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:12,342 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,343 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:12,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,345 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:12,346 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,347 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:12,347 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,348 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:12,349 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,350 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:12,351 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,352 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:12,353 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,354 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:12,354 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,355 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:12,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:12,358 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:12,358 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:12,358 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [565349924] [2024-10-24 05:20:12,358 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [565349924] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:12,358 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:12,358 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 05:20:12,359 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2112222991] [2024-10-24 05:20:12,359 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:12,359 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 05:20:12,359 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:12,360 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 05:20:12,360 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=23, Invalid=87, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:20:12,360 INFO L87 Difference]: Start difference. First operand 185 states and 287 transitions. Second operand has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:14,175 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:14,175 INFO L93 Difference]: Finished difference Result 654 states and 1000 transitions. [2024-10-24 05:20:14,176 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 11 states. [2024-10-24 05:20:14,176 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-24 05:20:14,176 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:14,179 INFO L225 Difference]: With dead ends: 654 [2024-10-24 05:20:14,179 INFO L226 Difference]: Without dead ends: 470 [2024-10-24 05:20:14,180 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 75 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 17 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 1.4s TimeCoverageRelationStatistics Valid=91, Invalid=251, Unknown=0, NotChecked=0, Total=342 [2024-10-24 05:20:14,180 INFO L432 NwaCegarLoop]: 153 mSDtfsCounter, 290 mSDsluCounter, 566 mSDsCounter, 0 mSdLazyCounter, 727 mSolverCounterSat, 152 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 290 SdHoareTripleChecker+Valid, 719 SdHoareTripleChecker+Invalid, 879 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 152 IncrementalHoareTripleChecker+Valid, 727 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.2s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:14,180 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [290 Valid, 719 Invalid, 879 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [152 Valid, 727 Invalid, 0 Unknown, 0 Unchecked, 1.2s Time] [2024-10-24 05:20:14,181 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 470 states. [2024-10-24 05:20:14,215 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 470 to 373. [2024-10-24 05:20:14,216 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 373 states, 290 states have (on average 1.4448275862068964) internal successors, (419), 293 states have internal predecessors, (419), 77 states have call successors, (77), 5 states have call predecessors, (77), 5 states have return successors, (77), 74 states have call predecessors, (77), 77 states have call successors, (77) [2024-10-24 05:20:14,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 373 states to 373 states and 573 transitions. [2024-10-24 05:20:14,218 INFO L78 Accepts]: Start accepts. Automaton has 373 states and 573 transitions. Word has length 167 [2024-10-24 05:20:14,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:14,219 INFO L471 AbstractCegarLoop]: Abstraction has 373 states and 573 transitions. [2024-10-24 05:20:14,219 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.1818181818181817) internal successors, (35), 11 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:14,219 INFO L276 IsEmpty]: Start isEmpty. Operand 373 states and 573 transitions. [2024-10-24 05:20:14,220 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 05:20:14,220 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:14,221 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:14,221 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable15 [2024-10-24 05:20:14,221 INFO L396 AbstractCegarLoop]: === Iteration 17 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:14,221 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:14,221 INFO L85 PathProgramCache]: Analyzing trace with hash 644110780, now seen corresponding path program 1 times [2024-10-24 05:20:14,221 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:14,222 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2039159901] [2024-10-24 05:20:14,222 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:14,222 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:14,244 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,962 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:19,963 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:19,964 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,964 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:19,965 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,965 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,966 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:19,966 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,967 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:19,967 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,968 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:19,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,969 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:19,969 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:19,970 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,970 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:19,971 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,971 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,972 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:19,972 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,973 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:19,973 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:19,974 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,974 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:19,975 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,975 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:19,976 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,976 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:19,977 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,978 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:19,978 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,979 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:19,980 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,980 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:19,981 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,981 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:19,982 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,982 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:19,983 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,983 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:19,984 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,985 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:19,985 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,986 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:19,986 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,987 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:19,987 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,988 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:19,988 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:19,989 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:19,989 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:19,990 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2039159901] [2024-10-24 05:20:19,990 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2039159901] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:19,990 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:19,990 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:20:19,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1234177924] [2024-10-24 05:20:19,990 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:19,991 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:20:19,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:19,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:20:19,991 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:20:19,991 INFO L87 Difference]: Start difference. First operand 373 states and 573 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:21,105 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:21,105 INFO L93 Difference]: Finished difference Result 573 states and 863 transitions. [2024-10-24 05:20:21,105 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:20:21,106 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-24 05:20:21,106 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:21,109 INFO L225 Difference]: With dead ends: 573 [2024-10-24 05:20:21,109 INFO L226 Difference]: Without dead ends: 571 [2024-10-24 05:20:21,110 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 69 GetRequests, 57 SyntacticMatches, 0 SemanticMatches, 12 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 13 ImplicationChecksByTransitivity, 1.2s TimeCoverageRelationStatistics Valid=51, Invalid=131, Unknown=0, NotChecked=0, Total=182 [2024-10-24 05:20:21,111 INFO L432 NwaCegarLoop]: 158 mSDtfsCounter, 212 mSDsluCounter, 578 mSDsCounter, 0 mSdLazyCounter, 446 mSolverCounterSat, 43 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.6s Time, 0 mProtectedPredicate, 0 mProtectedAction, 212 SdHoareTripleChecker+Valid, 736 SdHoareTripleChecker+Invalid, 489 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 43 IncrementalHoareTripleChecker+Valid, 446 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.7s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:21,111 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [212 Valid, 736 Invalid, 489 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [43 Valid, 446 Invalid, 0 Unknown, 0 Unchecked, 0.7s Time] [2024-10-24 05:20:21,112 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 571 states. [2024-10-24 05:20:21,177 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 571 to 548. [2024-10-24 05:20:21,178 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 548 states, 415 states have (on average 1.4216867469879517) internal successors, (590), 421 states have internal predecessors, (590), 122 states have call successors, (122), 10 states have call predecessors, (122), 10 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122) [2024-10-24 05:20:21,180 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 548 states to 548 states and 834 transitions. [2024-10-24 05:20:21,181 INFO L78 Accepts]: Start accepts. Automaton has 548 states and 834 transitions. Word has length 167 [2024-10-24 05:20:21,182 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:21,182 INFO L471 AbstractCegarLoop]: Abstraction has 548 states and 834 transitions. [2024-10-24 05:20:21,182 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:21,182 INFO L276 IsEmpty]: Start isEmpty. Operand 548 states and 834 transitions. [2024-10-24 05:20:21,183 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 05:20:21,183 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:21,183 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:21,183 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable16 [2024-10-24 05:20:21,184 INFO L396 AbstractCegarLoop]: === Iteration 18 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:21,184 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:21,184 INFO L85 PathProgramCache]: Analyzing trace with hash -737012168, now seen corresponding path program 1 times [2024-10-24 05:20:21,188 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:21,188 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [354804753] [2024-10-24 05:20:21,188 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:21,189 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:21,231 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,434 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:25,435 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,437 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:25,437 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,439 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:25,439 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,440 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:25,440 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,441 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:25,442 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,443 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:25,443 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,444 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:25,444 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,445 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:25,446 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,447 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:25,447 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,448 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:25,449 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,450 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:25,451 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,452 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:25,453 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,454 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:25,455 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,456 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:25,456 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,457 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:25,458 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,460 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:25,461 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,462 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:25,463 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,464 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:25,465 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,466 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:25,467 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,468 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:25,469 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,470 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:25,471 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,473 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:25,473 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,475 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:25,475 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,477 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:25,477 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,479 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:25,480 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,481 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:25,482 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,483 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:25,484 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:25,486 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:25,486 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:25,486 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [354804753] [2024-10-24 05:20:25,486 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [354804753] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:25,486 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:25,487 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:20:25,487 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [656626117] [2024-10-24 05:20:25,487 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:25,487 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:20:25,487 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:25,488 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:20:25,488 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=66, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:20:25,488 INFO L87 Difference]: Start difference. First operand 548 states and 834 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:26,570 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:26,570 INFO L93 Difference]: Finished difference Result 1198 states and 1817 transitions. [2024-10-24 05:20:26,571 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:20:26,571 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-24 05:20:26,572 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:26,576 INFO L225 Difference]: With dead ends: 1198 [2024-10-24 05:20:26,576 INFO L226 Difference]: Without dead ends: 661 [2024-10-24 05:20:26,578 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 67 GetRequests, 56 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 15 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=45, Invalid=111, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:20:26,578 INFO L432 NwaCegarLoop]: 169 mSDtfsCounter, 258 mSDsluCounter, 510 mSDsCounter, 0 mSdLazyCounter, 619 mSolverCounterSat, 61 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 258 SdHoareTripleChecker+Valid, 679 SdHoareTripleChecker+Invalid, 680 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 61 IncrementalHoareTripleChecker+Valid, 619 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:26,578 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [258 Valid, 679 Invalid, 680 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [61 Valid, 619 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 05:20:26,579 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 661 states. [2024-10-24 05:20:26,660 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 661 to 567. [2024-10-24 05:20:26,662 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 567 states, 434 states have (on average 1.4193548387096775) internal successors, (616), 440 states have internal predecessors, (616), 122 states have call successors, (122), 10 states have call predecessors, (122), 10 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122) [2024-10-24 05:20:26,664 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 567 states to 567 states and 860 transitions. [2024-10-24 05:20:26,665 INFO L78 Accepts]: Start accepts. Automaton has 567 states and 860 transitions. Word has length 167 [2024-10-24 05:20:26,666 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:26,666 INFO L471 AbstractCegarLoop]: Abstraction has 567 states and 860 transitions. [2024-10-24 05:20:26,666 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:26,666 INFO L276 IsEmpty]: Start isEmpty. Operand 567 states and 860 transitions. [2024-10-24 05:20:26,667 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 168 [2024-10-24 05:20:26,667 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:26,668 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:26,668 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable17 [2024-10-24 05:20:26,668 INFO L396 AbstractCegarLoop]: === Iteration 19 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:26,668 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:26,668 INFO L85 PathProgramCache]: Analyzing trace with hash -56953798, now seen corresponding path program 1 times [2024-10-24 05:20:26,668 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:26,668 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1585963048] [2024-10-24 05:20:26,668 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:26,668 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:26,695 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,062 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:32,063 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,064 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:32,064 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,065 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:32,065 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,066 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:32,066 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:32,067 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,067 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:32,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,069 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:32,069 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,070 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:32,070 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,071 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:32,072 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,072 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:32,073 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,073 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:32,074 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,075 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:32,075 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,076 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:32,076 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,077 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:32,078 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,078 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:32,079 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,080 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:32,081 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,081 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:32,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,083 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:32,084 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,085 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:32,085 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,087 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:32,087 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,088 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:32,089 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,090 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:32,091 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,092 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:32,093 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,094 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:32,095 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,096 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:32,096 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,098 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:32,099 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,100 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:32,101 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:32,103 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:32,103 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:32,103 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1585963048] [2024-10-24 05:20:32,103 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1585963048] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:32,103 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:32,103 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:20:32,103 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2027046142] [2024-10-24 05:20:32,103 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:32,104 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:20:32,104 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:32,104 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:20:32,104 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=20, Invalid=70, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:20:32,105 INFO L87 Difference]: Start difference. First operand 567 states and 860 transitions. Second operand has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:33,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:33,506 INFO L93 Difference]: Finished difference Result 631 states and 946 transitions. [2024-10-24 05:20:33,507 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:20:33,507 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 167 [2024-10-24 05:20:33,508 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:33,514 INFO L225 Difference]: With dead ends: 631 [2024-10-24 05:20:33,514 INFO L226 Difference]: Without dead ends: 629 [2024-10-24 05:20:33,515 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 73 GetRequests, 58 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 18 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=72, Invalid=200, Unknown=0, NotChecked=0, Total=272 [2024-10-24 05:20:33,516 INFO L432 NwaCegarLoop]: 171 mSDtfsCounter, 139 mSDsluCounter, 535 mSDsCounter, 0 mSdLazyCounter, 704 mSolverCounterSat, 35 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 139 SdHoareTripleChecker+Valid, 706 SdHoareTripleChecker+Invalid, 739 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 35 IncrementalHoareTripleChecker+Valid, 704 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:33,516 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [139 Valid, 706 Invalid, 739 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [35 Valid, 704 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 05:20:33,517 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 629 states. [2024-10-24 05:20:33,604 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 629 to 550. [2024-10-24 05:20:33,605 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 550 states, 417 states have (on average 1.419664268585132) internal successors, (592), 423 states have internal predecessors, (592), 122 states have call successors, (122), 10 states have call predecessors, (122), 10 states have return successors, (122), 116 states have call predecessors, (122), 122 states have call successors, (122) [2024-10-24 05:20:33,608 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 550 states to 550 states and 836 transitions. [2024-10-24 05:20:33,608 INFO L78 Accepts]: Start accepts. Automaton has 550 states and 836 transitions. Word has length 167 [2024-10-24 05:20:33,609 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:33,609 INFO L471 AbstractCegarLoop]: Abstraction has 550 states and 836 transitions. [2024-10-24 05:20:33,609 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.5) internal successors, (35), 10 states have internal predecessors, (35), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:33,609 INFO L276 IsEmpty]: Start isEmpty. Operand 550 states and 836 transitions. [2024-10-24 05:20:33,610 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 05:20:33,611 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:33,611 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:33,611 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable18 [2024-10-24 05:20:33,611 INFO L396 AbstractCegarLoop]: === Iteration 20 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:33,611 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:33,611 INFO L85 PathProgramCache]: Analyzing trace with hash -880803884, now seen corresponding path program 1 times [2024-10-24 05:20:33,612 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:33,612 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1452594569] [2024-10-24 05:20:33,612 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:33,612 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:33,649 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:37,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:37,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:37,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:37,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:37,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:37,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,525 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:37,526 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,526 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:37,527 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:37,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,528 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:37,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:37,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:37,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,532 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:37,533 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,534 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:37,534 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,535 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:37,535 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,536 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:37,536 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,537 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:37,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,538 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:37,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,539 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:37,540 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,540 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:37,541 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,542 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:37,542 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,543 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:37,543 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,548 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:37,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,549 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:37,549 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,550 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:37,550 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:37,551 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:37,551 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:37,552 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1452594569] [2024-10-24 05:20:37,552 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1452594569] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:37,552 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:37,552 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [11] imperfect sequences [] total 11 [2024-10-24 05:20:37,552 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1120849418] [2024-10-24 05:20:37,552 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:37,553 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 11 states [2024-10-24 05:20:37,553 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:37,554 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2024-10-24 05:20:37,554 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=26, Invalid=84, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:20:37,554 INFO L87 Difference]: Start difference. First operand 550 states and 836 transitions. Second operand has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:38,964 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:38,965 INFO L93 Difference]: Finished difference Result 774 states and 1146 transitions. [2024-10-24 05:20:38,965 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2024-10-24 05:20:38,966 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 168 [2024-10-24 05:20:38,967 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:38,970 INFO L225 Difference]: With dead ends: 774 [2024-10-24 05:20:38,971 INFO L226 Difference]: Without dead ends: 772 [2024-10-24 05:20:38,971 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 77 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 16 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 22 ImplicationChecksByTransitivity, 0.6s TimeCoverageRelationStatistics Valid=90, Invalid=216, Unknown=0, NotChecked=0, Total=306 [2024-10-24 05:20:38,972 INFO L432 NwaCegarLoop]: 217 mSDtfsCounter, 192 mSDsluCounter, 980 mSDsCounter, 0 mSdLazyCounter, 770 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.8s Time, 0 mProtectedPredicate, 0 mProtectedAction, 192 SdHoareTripleChecker+Valid, 1197 SdHoareTripleChecker+Invalid, 789 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 770 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.9s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:38,973 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [192 Valid, 1197 Invalid, 789 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 770 Invalid, 0 Unknown, 0 Unchecked, 0.9s Time] [2024-10-24 05:20:38,977 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 772 states. [2024-10-24 05:20:39,087 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 772 to 621. [2024-10-24 05:20:39,089 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 621 states, 482 states have (on average 1.437759336099585) internal successors, (693), 490 states have internal predecessors, (693), 126 states have call successors, (126), 12 states have call predecessors, (126), 12 states have return successors, (126), 118 states have call predecessors, (126), 126 states have call successors, (126) [2024-10-24 05:20:39,091 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 621 states to 621 states and 945 transitions. [2024-10-24 05:20:39,091 INFO L78 Accepts]: Start accepts. Automaton has 621 states and 945 transitions. Word has length 168 [2024-10-24 05:20:39,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:39,092 INFO L471 AbstractCegarLoop]: Abstraction has 621 states and 945 transitions. [2024-10-24 05:20:39,092 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 11 states, 11 states have (on average 3.272727272727273) internal successors, (36), 11 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:39,092 INFO L276 IsEmpty]: Start isEmpty. Operand 621 states and 945 transitions. [2024-10-24 05:20:39,094 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 05:20:39,094 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:39,094 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:39,094 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable19 [2024-10-24 05:20:39,094 INFO L396 AbstractCegarLoop]: === Iteration 21 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:39,094 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:39,094 INFO L85 PathProgramCache]: Analyzing trace with hash -200745514, now seen corresponding path program 1 times [2024-10-24 05:20:39,094 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:39,094 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1784472361] [2024-10-24 05:20:39,095 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:39,095 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:39,113 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,566 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:42,567 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:42,568 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,568 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,569 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:42,569 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:42,570 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,570 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:42,571 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,571 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:42,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,572 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,573 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:42,573 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,574 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:42,574 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,575 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:42,575 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:42,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,576 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,577 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:42,577 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:42,578 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,578 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,579 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:42,579 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,580 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:42,580 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,581 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:42,581 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,582 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:42,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,583 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:42,583 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,584 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:42,585 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,586 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:42,586 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:42,588 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:42,588 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:42,588 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1784472361] [2024-10-24 05:20:42,588 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1784472361] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:42,588 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:42,588 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [13] imperfect sequences [] total 13 [2024-10-24 05:20:42,589 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [221040052] [2024-10-24 05:20:42,589 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:42,589 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 13 states [2024-10-24 05:20:42,589 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:42,590 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 13 interpolants. [2024-10-24 05:20:42,590 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=33, Invalid=123, Unknown=0, NotChecked=0, Total=156 [2024-10-24 05:20:42,590 INFO L87 Difference]: Start difference. First operand 621 states and 945 transitions. Second operand has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:44,928 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:44,928 INFO L93 Difference]: Finished difference Result 792 states and 1160 transitions. [2024-10-24 05:20:44,930 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 13 states. [2024-10-24 05:20:44,930 INFO L78 Accepts]: Start accepts. Automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 168 [2024-10-24 05:20:44,931 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:44,935 INFO L225 Difference]: With dead ends: 792 [2024-10-24 05:20:44,935 INFO L226 Difference]: Without dead ends: 790 [2024-10-24 05:20:44,936 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 61 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 38 ImplicationChecksByTransitivity, 1.0s TimeCoverageRelationStatistics Valid=123, Invalid=297, Unknown=0, NotChecked=0, Total=420 [2024-10-24 05:20:44,937 INFO L432 NwaCegarLoop]: 167 mSDtfsCounter, 246 mSDsluCounter, 1019 mSDsCounter, 0 mSdLazyCounter, 1171 mSolverCounterSat, 20 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.4s Time, 0 mProtectedPredicate, 0 mProtectedAction, 246 SdHoareTripleChecker+Valid, 1186 SdHoareTripleChecker+Invalid, 1191 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 20 IncrementalHoareTripleChecker+Valid, 1171 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.6s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:44,937 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [246 Valid, 1186 Invalid, 1191 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [20 Valid, 1171 Invalid, 0 Unknown, 0 Unchecked, 1.6s Time] [2024-10-24 05:20:44,940 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 790 states. [2024-10-24 05:20:45,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 790 to 641. [2024-10-24 05:20:45,040 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 641 states, 501 states have (on average 1.435129740518962) internal successors, (719), 509 states have internal predecessors, (719), 126 states have call successors, (126), 13 states have call predecessors, (126), 13 states have return successors, (126), 118 states have call predecessors, (126), 126 states have call successors, (126) [2024-10-24 05:20:45,042 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 641 states to 641 states and 971 transitions. [2024-10-24 05:20:45,043 INFO L78 Accepts]: Start accepts. Automaton has 641 states and 971 transitions. Word has length 168 [2024-10-24 05:20:45,044 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:45,044 INFO L471 AbstractCegarLoop]: Abstraction has 641 states and 971 transitions. [2024-10-24 05:20:45,044 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 13 states, 13 states have (on average 2.769230769230769) internal successors, (36), 13 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:45,044 INFO L276 IsEmpty]: Start isEmpty. Operand 641 states and 971 transitions. [2024-10-24 05:20:45,045 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 169 [2024-10-24 05:20:45,045 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:45,045 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:45,046 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable20 [2024-10-24 05:20:45,046 INFO L396 AbstractCegarLoop]: === Iteration 22 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:45,046 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:45,046 INFO L85 PathProgramCache]: Analyzing trace with hash -2143958225, now seen corresponding path program 1 times [2024-10-24 05:20:45,046 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:45,046 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [858493383] [2024-10-24 05:20:45,047 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:45,047 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:45,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,509 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 2 [2024-10-24 05:20:47,510 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,510 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 7 [2024-10-24 05:20:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,511 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 13 [2024-10-24 05:20:47,511 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 18 [2024-10-24 05:20:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,512 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 24 [2024-10-24 05:20:47,512 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 29 [2024-10-24 05:20:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,513 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 35 [2024-10-24 05:20:47,513 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 40 [2024-10-24 05:20:47,514 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,514 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 46 [2024-10-24 05:20:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 51 [2024-10-24 05:20:47,515 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,515 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 57 [2024-10-24 05:20:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 62 [2024-10-24 05:20:47,516 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,516 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 68 [2024-10-24 05:20:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 73 [2024-10-24 05:20:47,517 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,517 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 78 [2024-10-24 05:20:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,518 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 84 [2024-10-24 05:20:47,518 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,519 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 89 [2024-10-24 05:20:47,519 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 95 [2024-10-24 05:20:47,520 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,520 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 100 [2024-10-24 05:20:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,521 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 106 [2024-10-24 05:20:47,521 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,522 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 111 [2024-10-24 05:20:47,522 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 117 [2024-10-24 05:20:47,523 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,523 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 122 [2024-10-24 05:20:47,524 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,524 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 128 [2024-10-24 05:20:47,525 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,527 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 133 [2024-10-24 05:20:47,528 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,529 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 139 [2024-10-24 05:20:47,529 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,530 INFO L368 atingTraceCheckCraig]: Compute interpolants for subsequence at non-pending call position 144 [2024-10-24 05:20:47,530 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2024-10-24 05:20:47,531 INFO L134 CoverageAnalysis]: Checked inductivity of 1404 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 1404 trivial. 0 not checked. [2024-10-24 05:20:47,531 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2024-10-24 05:20:47,532 INFO L334 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [858493383] [2024-10-24 05:20:47,532 INFO L158 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [858493383] provided 1 perfect and 0 imperfect interpolant sequences [2024-10-24 05:20:47,532 INFO L185 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2024-10-24 05:20:47,532 INFO L198 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2024-10-24 05:20:47,532 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1527263150] [2024-10-24 05:20:47,532 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2024-10-24 05:20:47,533 INFO L548 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2024-10-24 05:20:47,533 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2024-10-24 05:20:47,534 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2024-10-24 05:20:47,534 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=38, Invalid=52, Unknown=0, NotChecked=0, Total=90 [2024-10-24 05:20:47,534 INFO L87 Difference]: Start difference. First operand 641 states and 971 transitions. Second operand has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:48,723 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2024-10-24 05:20:48,723 INFO L93 Difference]: Finished difference Result 1303 states and 1968 transitions. [2024-10-24 05:20:48,725 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2024-10-24 05:20:48,725 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) Word has length 168 [2024-10-24 05:20:48,725 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2024-10-24 05:20:48,730 INFO L225 Difference]: With dead ends: 1303 [2024-10-24 05:20:48,730 INFO L226 Difference]: Without dead ends: 893 [2024-10-24 05:20:48,731 INFO L431 NwaCegarLoop]: 0 DeclaredPredicates, 72 GetRequests, 63 SyntacticMatches, 0 SemanticMatches, 9 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 0.4s TimeCoverageRelationStatistics Valid=47, Invalid=63, Unknown=0, NotChecked=0, Total=110 [2024-10-24 05:20:48,732 INFO L432 NwaCegarLoop]: 172 mSDtfsCounter, 172 mSDsluCounter, 374 mSDsCounter, 0 mSdLazyCounter, 493 mSolverCounterSat, 3 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 1.0s Time, 0 mProtectedPredicate, 0 mProtectedAction, 172 SdHoareTripleChecker+Valid, 546 SdHoareTripleChecker+Invalid, 496 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 3 IncrementalHoareTripleChecker+Valid, 493 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 1.0s IncrementalHoareTripleChecker+Time [2024-10-24 05:20:48,732 INFO L433 NwaCegarLoop]: SdHoareTripleChecker [172 Valid, 546 Invalid, 496 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [3 Valid, 493 Invalid, 0 Unknown, 0 Unchecked, 1.0s Time] [2024-10-24 05:20:48,733 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 893 states. [2024-10-24 05:20:48,840 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 893 to 625. [2024-10-24 05:20:48,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 625 states, 485 states have (on average 1.4288659793814433) internal successors, (693), 493 states have internal predecessors, (693), 126 states have call successors, (126), 13 states have call predecessors, (126), 13 states have return successors, (126), 118 states have call predecessors, (126), 126 states have call successors, (126) [2024-10-24 05:20:48,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 625 states to 625 states and 945 transitions. [2024-10-24 05:20:48,844 INFO L78 Accepts]: Start accepts. Automaton has 625 states and 945 transitions. Word has length 168 [2024-10-24 05:20:48,845 INFO L84 Accepts]: Finished accepts. word is rejected. [2024-10-24 05:20:48,845 INFO L471 AbstractCegarLoop]: Abstraction has 625 states and 945 transitions. [2024-10-24 05:20:48,845 INFO L472 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 10 states have (on average 3.6) internal successors, (36), 10 states have internal predecessors, (36), 1 states have call successors, (27), 1 states have call predecessors, (27), 1 states have return successors, (27), 1 states have call predecessors, (27), 1 states have call successors, (27) [2024-10-24 05:20:48,845 INFO L276 IsEmpty]: Start isEmpty. Operand 625 states and 945 transitions. [2024-10-24 05:20:48,846 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 170 [2024-10-24 05:20:48,846 INFO L207 NwaCegarLoop]: Found error trace [2024-10-24 05:20:48,847 INFO L215 NwaCegarLoop]: trace histogram [27, 27, 27, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2024-10-24 05:20:48,847 WARN L453 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable21 [2024-10-24 05:20:48,847 INFO L396 AbstractCegarLoop]: === Iteration 23 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION === [ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION] === [2024-10-24 05:20:48,847 INFO L157 PredicateUnifier]: Initialized classic predicate unifier [2024-10-24 05:20:48,847 INFO L85 PathProgramCache]: Analyzing trace with hash -70763749, now seen corresponding path program 1 times [2024-10-24 05:20:48,848 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2024-10-24 05:20:48,848 INFO L334 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [829169434] [2024-10-24 05:20:48,848 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2024-10-24 05:20:48,848 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2024-10-24 05:20:48,873 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat